Question About AI Colonization


Is there any way to remove colonization ships that belong to other civs without waging war? I mean, say I'm in a galaxy with 3 other civs, and i have a quarter of the galaxy under my influence. However, I don't generally colonise all planets in a system, just the higher PQ ones. So, after i've gotton a fair amount of influence in the galaxy, another civ's colonization ship comes and tries to colonize a lower-PQ planet deep in the heart of my empire. Needless to say, im not too happy about this, however, the only way i can find to stop them from disrupting my beautiful orb of influence is by destroying the colony ship, which is regarded as an act of war. This, also, i'm not too happy about. Is there any way to stop the AI from doing this without openly declaring war on them?

A Pre-emptive thanks for any answers.
8,351 views 5 replies
Reply #1 Top
Is there any way to stop the AI from doing this without openly declaring war on them?


Not without expending either enough ships to form a blockade or another colony ship to get the planet first. Some people use the way your colonizing as a strategy. Colonize to gain overall planet quality dominance with in each system. Then, you just let the AI come in grab the leftovers and watch them start flipping to you.   


Reply #2 Top
Oh.... okay. Generally, how long does it take for the enemy colonies to revolt and turn into my empire?
Reply #3 Top
You need a 4:1 influence ratio (I think) over the planet before it can revolt. I forget exactly what it's called, but if you look at the planet's properties, there will be a number which normally is very small or 0 if there are no other influences around. When that number reaches 4, then every turn it randomly flips.

I've had planets flip immediately after achieving the proper influence and I've had them never flip ("never" meaning I eventually invaded them because I didn't want them pumping out war ships and it was time to take their empire by force).

Anyway, that influence ratio is determined by how much population and influence structures you have on your larger PQ planet compared to theirs, and how much more influence your empire as a whole has compared to theirs.

One thing I always do on my "edge" planets is put embassies and such to keep my influence up. I do the same when attempting to flip smaller planets near me. Once I flip them, and there are no other influences nearby, I replace those buildings with something more useful -- such as economic buildings.
Reply #4 Top
I put embassies on all my bonus tiles, whether they're edge planets or not. Your civilization's overall influence comes into play on a lot of things.
Reply #5 Top

Or you can buy or te=rade the offending colony ship from the trade screen. Of course, it's more productive to let them colonize, then flip, but if you REALLY don't want themm to get that planet for some reason, then buy the ship and decomission it.